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Glossary

Audio/Video Transcoding

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Last updated: 2024-12-10 11:15:55

Overview

With audio/video transcoding, you can transcode media to different formats, frame rates, bitrates, resolutions, etc. so that it can be played back on different devices.
Category
Item
Description
Input
Container formats
Common audio/video container formats are supported, including WMV, RM, MOV, MPEG, MP4, 3GP, FLV, AVI, RMVB, TS, ASF, MPG, WEBM, MKV, M3U8, WM, ASX, RAM, MPE, VOB, DAT, MP4V, M4V, F4V, MXF, QT, WAV and OGG.
Video codecs
Common video codecs are supported, including AV1, AVS2, H.263, H.263+, H.264/AVC, H.265/HEVC, H.266/VVC, MPEG-1, MPEG-2, MPEG-4, MJPEG, VP8, VP9, QuickTime, RealVideo, and Windows Media Video.
Audio codecs
AAC, ADPCM, AMR, DSD, MP1, MP2, MP3, PCM, RealAudio, Windows Media Audio, and Vorbis.
Output
Container formats
Video: FLV, MP4, HLS (M3U8 + TS).
Audio: MP3, MP4, OGG, FLAC, and M4A.
Image: GIF and WebP.
Video codecs
H.264/AVC, H.265/HEVC, H.266/VVC, and AV1.
HD video
8K UHD and HDR.
Audio codecs
MP3, AAC, FLAC, and MP2.
Sound channels
Mono-channel, dual-channel, and stereo.
Other features
Watermarking
Image, text, and image-text watermarks.
Opening and ending segment splicing
Adds an opening or ending segment to the media.
Clipping
Transcodes and outputs the specified portion of a video.

Use Cases

Use Case
Description
Adapt to different devices
A source media file can be transcoded to formats (such as MP4 and HLS) that are compatible with more types of devices for smooth playback.
Increased bandwidth compatibility
A source video can be transcoded for output in multiple definitions such as LD, SD, HD, and FHD. End users can select the most appropriate bitrate depending on their network conditions.
Faster loading
The moov atom can be moved from the end of an MP4 file to the beginning of the file, allowing the video to be played before it is entirely downloaded.
Watermarking
A watermark can be added to a video to mark video ownership or copyright.
Opening and ending segments
Content such as ads and promotional materials can be added to the beginning or end of a video.
Reduce bandwidth usage
To reduce your bandwidth usage, you can use a more advanced codec (such as H.266 and AV1) or transcoding mode (Top Speed Codec transcoding) to significantly cut the bitrate without compromising the video quality.

How to Use

To learn about how to use the feature, please see Transcoding.

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